Subsoil-disk.



D. S. MGGANNI.

SUBSOIL DISK.

APPLICATION FILED AUG. 30, 1912.

1,062,246. Patented May 20,1913.

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D. s. lVIoGANN. SUBSOIL DISK.

APPLICATION FILED AUG. 30, 1913.

Patented May 20, 1913.

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DAVID S. 'MGCANN, OF AMBROSE, NORTH DAKOTA.

SUBSOIL-IDISK.

Specification of Letters Patent.

Patented May 20, 1913.

Application filed August 30, 1912. Serial No. 717,916.

To all whom it may concern."

Be it known that I, DAVID S. MOOANN, a

citizen of the United States, residing at Ambrose, in the county ofDivide, State of North Dakota, have invented certain new and usefulImprovements in Subsoil-Disks; and I do hereby declare the followlng tobe a full, clear, and exact description of the in vention, such as willenable others skllled 1n the art to which it appertains to make and usethe same.

This invent-ion relates to subsoil disks, and has for an object toprovide a subsoil disk adapted to be attached to a sulky plow and followbehind the same in the furrow to till the furrow from three to fiveinches deeper in order that a loose subsoil will exist at the bottom ofthe furrow rather than packed earth.

A further object of the invention is to provide a novel subsoil diskhaving means for shifting the disks to any desired angular positionrelatively to the draft beam whereby to penetrate deep or shallow.

With the above objects in view the invention consists of certain noveldetails of construction and combination of parts hereinafter fullydescribed and claimed, it being understood that various modificationsmay be made in the minor details of construction within the scope of theappended claim.

In the accompanying drawings forming part of this specification :Figure1 is a side elevation of the device attached to a sulky plow. Fig. 2 isa plan View of the device. Fig. 8 is a plan view of the device with thedisks shown in an adjusted position. Fig. 4 is a rear elevation of thedevice. Fig. 5 is a cross sectional view taken on the line 5-5 Fig. 1.Fig. 6 is a cross sectional view taken on the line 66 Fig. 1.

Referring now to the drawings in which like characters of referencedesignate similar parts, the device is shown to comprise a single gangof dished disks 10 mounted on a shaft 11 which is equipped with spacingtubes 12 between the disks. Standards 13 are provided at the lower endswith suitable journal boxes to receive the opposite ends of the shaftand have their upper ends connected by cross bars 14 upon which is fixeda box 15 within which may be placed stones or the like for weighting thedevice. A draft beam 16 is pivotally attached to the cross bar at therear end through the instrumentality of an upstanding pivot bolt 17carried at the center of the cross bar. The forward end of the cross baris provided with a suitable clamp 18 in the present instance shown as asplit ring for engagement with the bearing box 19 of the sulky plowguide wheel 20. It is to be understood that .the draft beam may beattached to any suit-able portion of the sulky plow.

For shifting the gang ofdisks to any desired angular position relativelyto the draft beam a pair of rods 21 are arranged on opposite sides ofthe draft beam and are provided at their rear ends with eyes 22 whichengage in eyes 23 carried by the standards. Depending from the forwardend of thedraft beam is a pivot pin 24 upon the lower end portion ofwhich is pivotally secured a rock link 25, the rock link being heldagainst escape through the instrumentality of an inclined brace 26 whichis secured at the upper end to the bottom face of the draft beam and isfurther secured to the pivot pin below the rock link through theinstrumentality of a nut 27. The forward ends of the rods 21arepivotally secured to the ends of the rock link through theinstrumentality of pivot bolts 28.

An operating lever 29 is pivotally secured intermediate the ends to thedraft beam through the instrumentality of a pivot pin 30, the lower endof the lever being offset as shown at 31 and being provided with an eye32 which encircles the rock link. A notched segment 33 is secured to thedraft beam and a spring pressed latch 34 is mount ed on the operatinglever and equipped with a pawl 35 which engages the notched segment andlocks the lever in any adjusted position. The operating lever may beshifted forwardly or rearwardly upon its pivot to actuate the rock link,the rods 21 being moved in opposite directions upon actuation of thislink and serving to shift the gang of disks to any desired angularposition relatively to the draft beam in order to cause the disks topenetrate deep or shallow.

For guiding the harrow a land-side 36 in the nature of a plate ispivotally secured to the shaft through the instrumentality of a yoke 37the bight of which is provided with an opening to loosely receive theshaft, this yoke being arranged in upstanding position and beingterminally secured to the landside through the instrumentality of bolts38 or similar connectors. The rear end of the land-side is equipped withan angle iron 40. Spaced arms 41 are fixed at their for- Ward ends tothe standards and are connected at their rear ends by a cross bar 42Which is centrally provided With a series of openings 43. A rod 44 isterminally provided with hooks 45 at its opposite ends, the lower endhook being engaged in an orifice formed in the angle iron 40, and theupper end hook being selectively engaged in any one of the openings 43.

What is claimed is A subsoil disk including a draft beam, a gang ofdisks carried at the rear end of said draft beam, oppositely movablerods carried by said disks, a manually operatable shift link connectedto said rods for actuating the same and moving said disks to angularpositionsrelatively to said draft beam, a yoke carried in uprightposition by said disks, a guide plate secured to the terminals of saidyoke and extending rearwardly beyond said disks, a horizontallyextending frame carried by said disks, and a rod pivotally connected tothe rear end of said plate and adjustably connected to the intermediateportion of said frame.

In testimony whereof, I aflix my signature, in'presence of twoWitnesses.

DAVID S. MGGANN. Witnesses:

P. G. ANDERSON, G. P. GRYTRUss.

Copies of this patent may he obtained for five cents each, by addressingth Commissioner of Patents. Washington, D. G.

